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Refactor sprite code in preparation of implementing OBJ mosaic

This commit is contained in:
Jeffrey Pfau 2013-10-27 02:39:14 -07:00
parent 72ef1643c7
commit 3b0ee473d3
1 changed files with 19 additions and 16 deletions
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35
src/gba/renderers/video-software.c
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@ -1172,23 +1172,14 @@ static const int _objSizes[32] = {
};
#define SPRITE_NORMAL_LOOP(DEPTH, TYPE) \
SPRITE_YBASE_ ## DEPTH(inY); \
int outX = x >= start ? x : start; \
int condition = x + width; \
if (end < condition) { \
condition = end; \
SPRITE_YBASE_ ## DEPTH(inY); \
for (; outX < condition; ++outX, inX += xOffset) { \
if (!(renderer->row[outX] & FLAG_UNWRITTEN)) { \
continue; \
} \
for (; outX < condition; ++outX) { \
int inX = outX - x; \
if (sprite->hflip) { \
inX = width - inX - 1; \
} \
if (!(renderer->row[outX] & FLAG_UNWRITTEN)) { \
continue; \
} \
SPRITE_XBASE_ ## DEPTH(inX); \
SPRITE_DRAW_PIXEL_ ## DEPTH ## _ ## TYPE(inX); \
}
SPRITE_XBASE_ ## DEPTH(inX); \
SPRITE_DRAW_PIXEL_ ## DEPTH ## _ ## TYPE(inX); \
}
#define SPRITE_TRANSFORMED_LOOP(DEPTH, TYPE) \
int outX; \
@ -1269,6 +1260,18 @@ static int _preprocessSprite(struct GBAVideoSoftwareRenderer* renderer, struct G
if (variant) {
palette = renderer->variantPalette;
}
int outX = x >= start ? x : start;
int condition = x + width;
if (end < condition) {
condition = end;
}
int inX = outX - x;
int xOffset = 1;
if (sprite->hflip) {
inX = width - inX - 1;
xOffset = -1;
}
if (!sprite->multipalette) {
if (flags & FLAG_OBJWIN) {
SPRITE_NORMAL_LOOP(16, OBJWIN);